To enter a coupon code in MPerks, click on the "Coupons" tab and then look for the search bar on the right side of your computer screen. Enter your code there. Or, if using the Meijer app on your mobile device, tap on the pull-down list icon on the left side of the screen and click on the MPerks tab. Click on the “Coupons” tab and then click the magnifying glass icon on the top right side of the screen. A search bar will pop up, and this is where you enter your code.